import java.util.LinkedList;
import java.util.List;

public class Utility{
	private List<String> reserved_words;
	public Utility(String [] words){
		this.reserved_words = new LinkedList<String>();
		for(int i=0; i<words.length; i++)
			reserved_words.add(words[i]);
	}
	public boolean isReservedWord(String st){
		return reserved_words.contains(st);
	}
	public String getReservedWord(String st){
		String rw="";
		if(isReservedWord(st)){
			rw=reserved_words.get(reserved_words.indexOf(st));
		}
		return rw;
	}

}
